Tool-holder for metal-working machines.



No. eauss; Patented .Aug. 20, IQUII.

J. OUIGLEY.

TOOL HOLDER FOR METAL WORKING MACHINES.

(Application filed Apr. 13, 1901.1

(No Model.)

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I erably longer than heretofore, and yet will be ings, in which-- f Fig. 3 isa similar view showing a short tool clamped in position; and Fig. 4 is a sectional plates, so as to hold it rigidly in position, and

when the tool is soshort that only one clamplittle left of the body of the tool to clamp to .35. I A is the head of a planing-machine in the head "has side flanges d d, which form a cavity in which the tool E snugly fits.

d cl are preferablyslightly tapered at the Fig. 3, will be clear of the head. This allows UNITED STATES PATENT OFFICE.

JAMES QUIGLEY, OF PHILADELPHIA, PENNSYLVANIA.

TOOL-HOLDER FOR METAL-WORKING MACHINES.

SI ECIFIGATION forming part of Letters Patent N 0. 681,139, dated August 20, 1901.

Application filerl April 13, 1901.

To all whom it may concern.-

Be it known that I, J AMES QUIGLEY, a citizen of the United States, residing in Philadelphia, Pennsylvania, have invented certain Improvements in Tool Holders for Metal- Working Machines, of which the following is a specification.

My invention relates to certain improvements in means for holding tools to the heads of metal-working machines, such as planers.

The object of my invention is to provide means whereby the tool can be used considheld rigidly to the head of the machine. This object I attain in the following manner, reference being had to the accompanying draw- Figure 1 is a perspective view of my improved tool-holder. Fig. 2 is a sectional view showing a long tool and my improved holder secured to the head of the planing-machine.

view on the line t 4, Fig. 2.

The ordinary metal-planing tool, for instance, should be clamped by two clampplate can be used then it has to be discarded.

tool-steel is expensive. By my invention I am enabled to-use a tool until there is very the head.

present instance. I

B are the clamp-plates, secured to the by studs 0 O,having nuts 0 c in the present instance.

E is the tool having a cutting portion e of any suitableshape, depending upon the work i to be planed. I

Dis my improved tool-holder. This holder The flanges rear,so that the upper portion 4. of. the toolholder will rest against the head A, while the lower portion, as shown by dotted lines in Consequently there is considerable loss, as

Serial No. 55,765. (No model.)

to hold either a long tool, as illustrated in Fig. 2, or hold a tool as short as that shown in Fig. 3 rigidly to the head, and I have by practical experiments made very heavy cuts with a tool using my improved holder without dislodging the tool, and these cuts could not be made heretofore with the tool, say, of such length as to be held by both clampplates.

In order to hold my improved tool-holder in position when the nuts 0 c are backed 01f to adjust the tool, a lip d is formed upon the face 01 of the holder, which is arranged to extend over one of the clamp-plates B. I preferably form this lip by cutting the upper end of the holder and forcing out the lip, as shown in Fig. 1, and this lip will rest upon the upper cross-bar, as shown in Figs. 2 and 3.

I claim as my invention- 1. As a new article of manufacture, a toolholder for securing tools to the heads of metalworking machines, said tool-holder having a front plate and side flanges forming a cavity for the reception of a tool and so shaped that it can be clamped to the head of a metalworking machine, one end of eachside flange being deeper than the other end, substantially as and for the purpose described.

2. The combination in means for securing a short tool to the head of a metal-working head, a tool, a tool-holder fitting over the clamp-plates by which the holder is secured tool, the said tool-holder being shaped to bear to the head, substantially as described. only against the tool at its lower end, and In testimony whereof I have signed my. against the head at its upper end, substanname to this specification in the presence of r 5 5 tially as described. two subscribing Witnesses.

4. As a new article of manufacture, a toolholder for securing short tools to the head of a metal-Working machine, said holder conm JAMES QUIGLEY. sisting of a face-plate and two flanges form- Witnesses:

mark

10 ing a cavity for the tool, and a projection on WILL. A. BARR,

the holder arranged to engage one of the Jos. H. KLEIN. 

